Are we more polarised than ever and is Brexit making it worse?

Are we more polarised than ever and is Brexit making it worse? The last two elections in Northern Ireland obviously gave a clear indication of the split here, with the DUP and Sinn Fein emerging as the two biggest parties by far. Earlier this week 200 representatives from nationalist civic society, wrote an Open Letter to the Taoiseach published in the Irish News. They called on Leo Varadkar to stand up for the equal rights of Irish citizens in Northern Ireland. Vinny got the views of Irish News columnist Allison Morris, former Sinn Fein MLA Daithi McKay, Professor Jon Tonge, commentator Malachi O'Doherty and Newsletter deputy editor Ben Lowry.